In this paper, five biodiesel global combustion decomposition steps are added to a surrogate mechanism to accurately represent the chemical kinetics of the decomposition of different levels of saturation of biodiesel, which are represented by five major fatty acid methyl esters. The reaction constants were tuned based on the results from the numerical simulations of the combustion process in an ignition quality tester (IQT) in order to obtain accurate cetane numbers. The prediction of the complete thermophysical properties of the five constituents is also carried out to accurately represent the physics of the spray and vaporization processes. The results indicated that the combustion behavior is controlled more by the spray and breakup processes for saturated biodiesel constituents than by the chemical delay, which is similar to the diesel fuel combustion behavior. The chemical delay and low temperature reactions were observed to have greater effects on the combustion and ignition delay for the cases of the unsaturated biodiesels. The comparison between the physical ignition delay and overall ignition delay between the saturated and unsaturated biodiesel constituents has also confirmed those stronger effects for the physical delay in the saturated compounds as compared to the unsaturated compounds. The validation of the proposed model is conducted for the simulations of two direct injection diesel engines using palm methyl ester and rape methyl ester.
Skip Nav Destination
Article navigation
August 2019
Research-Article
A Proposed Biodiesel Combustion Kinetics Based on the Computational Fluid Dynamics Results in an Ignition Quality Tester
Mahmoud Elhalwagy,
Mahmoud Elhalwagy
Department of Mechanical and
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: melhalwa@uwo.ca
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: melhalwa@uwo.ca
Search for other works by this author on:
Chao Zhang
Chao Zhang
Mem. ASME Professor
Department of Mechanical and
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: czhang@eng.uwo.ca
Department of Mechanical and
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: czhang@eng.uwo.ca
Search for other works by this author on:
Mahmoud Elhalwagy
Department of Mechanical and
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: melhalwa@uwo.ca
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: melhalwa@uwo.ca
Chao Zhang
Mem. ASME Professor
Department of Mechanical and
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: czhang@eng.uwo.ca
Department of Mechanical and
Materials Engineering,
Western University,
London, ON N6A 5B9, Canada
e-mail: czhang@eng.uwo.ca
1Corresponding author.
Contributed by the Internal Combustion Engine Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 28, 2018; final manuscript received January 8, 2019; published online February 14, 2019. Assoc. Editor: Stephen A. Ciatti.
J. Energy Resour. Technol. Aug 2019, 141(8): 082204 (13 pages)
Published Online: February 14, 2019
Article history
Received:
October 28, 2018
Revised:
January 8, 2019
Citation
Elhalwagy, M., and Zhang, C. (February 14, 2019). "A Proposed Biodiesel Combustion Kinetics Based on the Computational Fluid Dynamics Results in an Ignition Quality Tester." ASME. J. Energy Resour. Technol. August 2019; 141(8): 082204. https://doi.org/10.1115/1.4042530
Download citation file:
Get Email Alerts
Cited By
Stage-wise kinetic analysis of ammonia addition effects on two-stage ignition in dimethyl ether
J. Energy Resour. Technol
Related Articles
Combustion and Emissions Characterization of Soy Methyl Ester Biodiesel Blends in an Automotive Turbocharged Diesel Engine
J. Eng. Gas Turbines Power (September,2010)
A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications
J. Eng. Gas Turbines Power (November,2015)
Comparisons of Diesel PCCI Combustion Simulations Using a Representative Interactive Flamelet Model and Direct Integration of CFD With Detailed Chemistry
J. Eng. Gas Turbines Power (January,2007)
Numerical Investigation of Combustion and Emission With Different Diesel Surrogate Fuel by Hybrid Breakup Model
J. Eng. Gas Turbines Power (April,2019)
Related Proceedings Papers
Related Chapters
Determination of the Effects of Safflower Biodiesel and Its Blends with Diesel Fuel on Engine Performance and Emissions in a Single Cylinder Diesel Engine
International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)
Use of Jatropha Oil Methyl Ester and Its Blends as an Alternative Fuel in Diesel Engine
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Steady-state Combustion
Theory of Solid-Propellant Nonsteady Combustion